Mixing and discharge apparatus

Claim 1

A MIXING AND DISCHARGING APPARATUS ADAPTED FOR QUICK-FLUSHING COMPRISING A HOUSING PROVIDED WITH A MIXING CHAMBER AND A DISCHARGE OPENING LEADING THEREFROM; SEPARATE SOURCES OF SUPPLY RESPECTIVELY FOR A MATRIX MATERIAL AND AN ACTIVATING AGENT; SEPARATE SUPPLY CONDUIT MEANS LEADING FROM EACH OF SAID SOURCES OF SUPPLY TO SAID MIXING CHAMBER TO ADMIT THERETO IN DISCRETE PROPORTIONS SAID MATRIX MATERIAL AND ACTIVATING AGENT; A PAIR OF FLOW CONTROL VALVES, EACH BEING PROVIDED IN A RESPECTIVE ONE OF SAID SUPPLY CONDUIT MEANS AND SHIFTABLE ALTERNATIVELY TO AND FROM OPEN AND CLOSED POSITIONS TO ADMIT AND TO BLOCK FLOW OF FLUID THERETHROUGH; A SEPARATE SOURCE OF SOLVENT FOR SAID MATRIX MATERIAL, THE SOLVENT BEING EFFECTIVE IN USE ALSO FOR A MIXTURE OF SAID MATRIX AND SAID ACTIVATING AGENT; AND CONDUIT MEANS LEADING FROM SAID SOLVENT SOURCE TO SAID MIXING CHAMBER AND IN FLUID COMMUNICATION WITH ONE OF SAID FLOW CONTROL VALVES, SAID ONE VALVE BEING SHIFTABLE TO A FIRST POSITION TO BLOCK FLUID FLOW THROUGH BOTH OF THE CONDUITS IN FLUID COMMUNICATION THEREWITH, AND TO A SECOND POSITION ESTABLISHING COMMUNICATION BETWEEN ITS RESPECTIVE ONE OF SAID SUPPLY SOURCES WHILE BLOCKING FLOW BETWEEN SAID SOLVENT SOURCE AND SAID MIXING CHAMBER, AND ALSO TO A THIRD POSITION BLOCKING FLOW FROM SAID RESPECTIVE ONE OF SAID SUPPLY SOURCES WHILE ADMITTING FLOW FROM SAID SOLVENT SOURCE TO SAID MIXING CHAMBER.